Rendering apparatus.



G. E. ORD.

RENDERING APPARATUS.. APPLICATION FILED 213.19, 190e.

Patented Jam, 1911.

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RENDERING AFPARATUS. APPLICATION FILED 1113.19, 1906.-

980,665.- Patented Jans, 1911.

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o.l E. DRD. RENDERING APPARATUS.

APPLIUATION HLBD PEB. 19, 190e. 980,665, Patented Jans, 1911.

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CHARLES E. om), or BROOKLYN TWNSHIP, cUYAHoGA COUNTY, oHIo.

RENDERING APPARATUS.

Specification of Letters Patent.

Patented Jan. 3, 1911.

Application led .February 19, 1906. Serial No. *301,949.

To all whom it may concern:

' Be it. known that I, CHARLES E. ORD, -a citizen of .the,United States,residingin Brooklyn-township, in the county of Guya hoga and State o fOhio, have invented certain vnew Vand usefullmprovements in RenderingApparatus; and I do hereby declare the following to be a full, clear,land exact descriptionv of the invention, such as will enable othersskilled in the artto whichI it pertains to make and use the same Myinvention relates to the destructive treatment of garbage embodymg therendering or extracting of the fats from the, animal matteigiand thedrying of the re-v siduum, and the treatment of the same, the

entire process being performed in the sameptank or vessel, and theobnoxious vapors being eliminated through the condenser, and

the less volatile vapors being employed in the heating chamber. v

The objects of this invention are, to obtain any evenly distributedheat\ area throughout the mass "contained within the tank,and theutilization of the'exhaust or low pressuresteam for the drying process.

Another object of my invention is to allow thelive steam to be employed,first for the purpose of agitating the mass during the cookingprocess'of the residuum; and

secondly to allow the live 4steam to be introduced into the differentconduits and at the discharge door for cleansing purposes.

Another object is to provide .means for eliminatingv obnoxiousodors,emanating from the still or converter, during the primary` operationupon the mass contained therein and roviding means in this connectionfor conc ensing the vapors and conducting them to proper sewerageconveyers.

My invention consists in the combination i 4hereinafter fully setforth-for the` purpose of obtaining the above 'results and objects, andthis invention `further consists in the parts and combination of parts,conveniences and safety appliances, which will be i also hereinafterfully s'etforth and'claimed.

In the drawings FigureI, is` a view in front elevation of a deviceconstructed according to my invention. This figure illustratesthe deviceexternally for the most part, showing the arrangement and location ofthe parts such as pi es, condensers, steam inlets and outlets.' At theleft hand upper portion of this ligure a portion is cut a way,illustrating the interior .of the parts Y of the receptacle, and thevacuum pipe valve and lcheck valve. Fig. II, is a vertical sec- -tionalview taken through line 2-2 Fi I looking in the direction of the arrows,il ustrating the interior arrangement and also parts not clearly shownin Fig. I. Fig. III,

illustrates a cross sectional view taken through the containerand thetesting device, the latter turned in/ a hhrizontal plane. Fig. IV is anenlarged form of the residuum discharge door-'way by meansA of which theresiduum may be removed. In this )figure the door 52 is shown, whichconsists of a proper flanged ,plate hermetically attached, and will bereadily understood, and its con struction, may be varied.

The improved construction of the door is of the samestyle as that in myPatent- No. 568,696, dated Sept. 29, 1896, with the exception that inthis invention I have provided means for introducing live steam withinthe door casing and the perforated plate, closing the door -orice whichallows the live steam to enter the tank A, but prevents the residuumfrom dropping out.

In the drawings A represents an upright distilling, rendering and'drying tank,

adapted to receive the oifal or mass to be treated, which is fed to thetank through the charging orifice A at the upper part of the tank. rI`his charging orifice A is illustrated in Figs. I and II and is providedwitha cover A2 adapted to be removed from sald orifice and to behermetically sealed or closed.

In order to properly handle the cover A2,I -I have provided at the upperend of the upper'end being pivotally secured to thel nut a whichengages. with the depending 'screw rod a, thc lower 'end of the rod a'Lis swiveled and attached to the upper portion of ,the cover A2 at itscentral port-ion. This swivel attachment a2 is preferably pivoted as ata3, to the cover A2. It will thus be seen that by manipulating the roda* Which is preferably done by a handwheel a5 the cover may be raised;or lowered and hermetically sealed in position and that when raised thec over A2 may be swung out of the way thus facilitating the charging ofthe tankA. Also secured to and communicating with the upper portion 'of'the tank "A is an exhaust or vacuum pipe B whichhas a branch B dependingfrom it tions, utilizedvboth for the purpose of cleanstending downwardso as to communicate with the tank A. It will also be noticed that thepipe B is provided with capped orifices b', b2, which are emergency'connec- K ing the vacuum pipe, at this point, and for the attachment ofvacuum connections in case of emergency such as the inoperative ness ofthevacuum pump or leakage of the pipe B2. 4The vacuum pipe B is providedwith'a cut-oft' valve B3 which is preffor the purpose.

erably of the gate valve construction, but

may be of any suitable construction adapted Inasmuch as it often happensthat through the leakage of the pipe B2 and its connections with thevacuum pump not shown, -or through the stoppage of the lvacuum pump, thevacuum in the tank' A is not maintainedv to a desirable extentnr degreeand hence I have provided an emergency check valve B4 which will closewhen any leakage occurs, and thus maintain the vacuum in the tank A andprevent the syphoning of the water from the vacuum pump into the tankuntil such time as re-- pairs can be made or attachment be made eitherto the pipe B or by means of the capped orifices b", b2. It will thus beseen that the apparatus may be in operation until repairs can be made orthe drying operation completed.

At the upperend of thetank A I have provided a gas escaping pipe C,through which the obnoxious gases pass which ema- 7nate during therendering or drying process. These gases pass into a disinfectingorcondensing apparatus and from thence to a proper lsewage. in a harmlesscondition. Connected also at the upper end of thetank A, is avacuum gageQQ, w'hich is connected and communicates with the interior of the tankA, through the pipe g. `This gage in` dicates the degree of vacuum. Itwill of course be understood that the chamber A, when the apparatus isin operation, is hermetically sealed. l

The orifices T, T, T2, may be provided in the side of the rendering anddrying tank A, communicating with the interior thereof, and located atthe upper portion of the tank A, and at different levels These orificesarel provided with strainers 50 of any suitable construction topreventany solidv material from passing lout through the pipes,

and attached to the pipes leading from these orifices may be suppliedsuitable stop cocks 51. The function of these orifices, .as located, istwofold, first to draw 'ofl' any water that may emanate. during therendering process, and second to carry off an of the fats or oils. Itwill thus -be seen from the above description that, the rendering tankA, is provided with allnecessary adjuncts and auxiliaries to meet therequirements in the most convenient, labor saving, and perfect manner. fRelative to the drying. and heating mechanism, it will be noticed thatthe tank A, diminishes in an inverted conical shape from its centralportion downwar and that it is surrounded at its sides by a cylindricalcasing J which leaves an annular heating chamber H surrounding thellower'portion f, of the tank A, which the chamber H incloses. Theobject of gradually. reducing the area of the tank A as above set forthis first to provide, at the lower portion of the tank lesser area, anda,4 lesser cross section-of mass to be operated upon by the agitator'blades S and thus allowing the tank to be built of anysuitabledimensions and still not increase the strain Iupon the agitatorblades, and secondly it obviates the necessity of providing greaterpower to operate the agitator blades.

A double function is attained by thus/constructing/the lower portion ofthe tank A, and the chamber H, in the first place, by the invertedconical shape of the lower part of the chamber A, the mass within thecontainer is collected at the lower end of said chamber wherek it isagitated by means of scraperportion ofthe heating chamber both theexhaust and live steam are fed by means of a pipe P which communicateswith the upper end of said chamber H, as does also the pipe (Z2.

t 7will be noticed by referring to Fig. II of the drawings that thebottom plate of the drying and rendering tank A is formed rounding atits periphery, forming an ananula-r pocket at Kthis point, the object-ofwhich is to provide an annular receptacle for foreign matter, such asiron or steel which might come in contact with the blades or work underthem. The laction of the blades is such that upon slightly raising theblades, the foreign matter .will be forced into this annularreceptacleby centrifugal force, and hence these foreign matters areplaced out o f the way of the blades, and

wear of the bottom of the tank. At the lower end the tank is supportedby stay ,bolts afrom the convex plate- U, which forms the top of thesupporting casing for containing the driving and adjusting mechanism forthe blades S, and by thus supporting the bottom of the tank A the steamis allowed to-heat the under or bottom portion of said tankand theconvex shape ofthe plate ers a support for the tank A. The convex shapeof the plate U in the first place strengthens the support o f the tank;another function of the plate U, as above setl forth is that by thusshaping the bottom of the chamber H, the Water Hows to the periphery ofsaid plateand the chamber-111, seen, arid then through the pipe 1y, andfrom thence either direct-ly,

, is open.l

The bearing and stu ng shaft S is supported by said plate U. The

trap P3. when the valve Hp lower end of lthe shaft S isA receivedwithinthestep S3, which isofany suitable formation, either the styleillustrated in Fig. II, or'it may be of the ball bearing type. The

' shaft S is driven by suitable gear and pinblocks being shown in ion,such as V, V, respectively. The gearing V is splined to the shaft 'SY sothat said shaft S 'may be raised or lowered, allowing the blades S, S,to rise or lower. The blades S, S, are adjusted in relationto the bottomofthe tank A by means of a lever L with adjusting means such as L.

neet-s the lever L, near the fu'lerum'ed end vthereof to a side bracket9,`and is designed to support oneend of said lever in the event of theybreakage of the fulcrum pin 10. The shaft Sis held in the step S3 which'is secured to the lever L and the gearing V restsiupon supportingblocks y1l placed on qpposite sides of said step, one f of said S beingcapable of vertical -adjustment to be raised or lowthe distance at whichthe blades' shall be' lelevated above the bottom of the tank The'supporting casing Nis preferably formed separable from the casing' J'frconvenience in". setting up the' device, but this is :.teringthe, steamint vfirst the introductionof live steam at fthe .not necessary and onlya matter of con .venience where the space prevents thesetting up of theapparatus when it is formed integral.

- As illustrated in H of the drawings and in Fig. III-I havershown alive 'steam pipe M which communicates with the interior of the chamber Aat its lower portion as at m, and is directed at its lower end so as toforce the steam in the same direction as the bladesSrevolve' The objectof thus enthe tank A is twofold,

' process has ceased.

as is easilly' when the cap P23' is removed, or through the pipe p intothe box S2 for thel A link 8 con- Fig. II. yThe shaft lower portion ofthe tank A passing through the residuum will aid in agitating it,separating the particles, while atjthe same time, carry off all of theby-products` and coagulate lall albuminous matters 'as will be found inthe residuum after the rendering The steam in the cha1nber A moves inthe same direction as the blades S, and serves to aid the blades andacts as an auxiliary to them in moving the mass, yand preventing thesettling of the same around the inner/walls f. The pipe M it will beunderstood leads from a suitable boiler, as do all live steam pipesillustrated inthe apparatus. process live steam is employed preferably,

while during the drying process exhaust steam may be used, unlessdesired to quicken the process.

The exhaust steamfrom any convenient source of supply, not shown, is fedto the chamber H at itsnpper end 'through the pipe 1, and as itcondenses it flows through the discharge outlet P as does also the livesteam used for the rendering process. -Any obnoxiousV vapors Within thetank A will pass as hereinafter described, through the conduit 1" into aproper `d'isinfecting and condensing apparatus. to the trap Paisprovided with a valve p',

whereby the communication with ,the trap P3 is cut olf, if founddesirable, and under certain conditions. This pipe P is located The pipepleading lat the lower portion of the chamber H at one side thereof soas/to thoroughly drain said chamber.

Live steam pr steam under pressure, can be supplied to the chamber Hthrough the medium ofthe valve and pipe O and also-.thc valve 0. purposeof facilitating the ,rendering procelslswhen the exhaust steam isinsulicient for t e the residuum in the tank. The pressure inthe chamberH is 'indicated and can be ascertained through the gage G.

This is convenient both for the.

purpose and for the drying process of,

Livesteam is introduced inte the-lower i portion of the tank Athroughthe pipe O,

which. is provided with a pressure regulator t, anda safety valve t',and'also with a pressure indicator G2, anda check valve t2,

means of a gage G, andthe three gages A at thisipoint cor1nthata vglancewill ascertain the condition of theseveral parts.

lthus vkeeping thepressure of the steam inand providing means G2, arepreferably placed on a line so The live steam inletpipe O is branched asl at. O andat its-lowr`end is coupled so as to connect with the pipe O2.

wthich leads into the tank A, through the doorway-chamber Y. 13@

ltor the purpose of testing the materials or residuum, I provide a pipe02 extending outward and provided with a large valve lt. Thisconstruction is more clearly shown in Fig. III of the drawings, insection, where the valve is shown open. A pipe extends from -the valve Rto a chamber 1F .which isprovidcd on its end with a stutiing box rthrough which runs the rod F which 1s the testing rod. This rod isprovided on its in? most end With a spiral so constructed that. when it1s lnserted into the mass a portion ot said mass of the residuum willadhere to it stop block l1.2 is placed on the rod F in a manner so thatit may be adjusted to determine the. inward distance into thema-ss,

.which is ydesired to be tested.

Still another feature of my invention is the providing of a casing (seeFig. IV) such as Y around the doorway which formsa chamber exterior of`said doorway allowing the door 52, which may be removed or'hermetically sealed in position, to close the chamber Y. And acting asa diaphragm in the/*opening of the doorway is a `pla'te Y y which -isperforated at its lower portion.

This plate Y forming -the inner side of said chamber Y and preventingthe residuum or matter within the tank A from escaping.'

The pipes y, y. lead into the chamber at the Asides thereof and when thedoorway is hermetically sealed, the live steam is fed through said pipesy, y, and enteringthe chamber A, thus clearing the doorway of anymaterial that may be clogged at the same, and leaving the clear steamtobe fed at the lower part of the tank A.; These pipes y', y, are fedlfrom the pipe O leading from the pipe O.

The operating of my device is as follows:

.The tank is first .charged with a proper quantity of water, the exhauststeam from any suitable supply is then turned into the chamber H,through the pipe P at the upper endv of said chamber until the Water inthe tank A is about at the boiling point, at this point the tank A isready to be charged,

which is done by opening the cover A2 in the manner hereinbeforedescribed.` After the tank A is charged to a predetermined extent.depending upon the matter to be treated, the cover lA2 is replaced onits opening and hermetica'lly sealed in position.- 'Live steam 1s thenintroduced into the tank A through the pipe O which leads to the doorcasing Y which is also hermetically sealed by its door, and from thencethe live steam passes through the perforations 1n the plate y` into themass. AThis results in setting up a circulation in the mass and also inagitating the particles. This feeding of the live steam is kept up for arequired time (about 3 or 4 hours)- aeeording to the matter `to betreated and its condition, this re- `sults in relieving the fats fromthe matter, and allow them to rise to the upper portion of the -tank andabove the water. 'However as the live steam must `be introduced into themass under a predetermined pressure aecording to the material to betreated, the ln'cssure. and the quantity of the same is controlled by apressure regulator valve t,

should they pressure regulator valve at any time refuse to Work thesafety valve' t will determine the requisite amount of pressure. At apoint farther along the pipe O and be.- .vond the connection of saidpipe with the gage, is located a check-valve t2 so arranged as toprevent any back flow from the tank A through said pipe.

- Afterthe live steam has been fed into the tank A the valve d is openedwhich releases the obnoxious vapors into the condenser-'1). When Vtheseobnoxiousy vapors have passed, which may be ascertained by the low fromthe discharge pipe, the valve d','is opened.` This allows the steam atthe upper portion of the tank A to pass into the chamber 1-1, retainingan "equilibrium and preventing, to a great extent, any waste of heat,and furthermore releasing any over- ]nessure within said tank, and Vthusutilizing atvthe same time the heat generated in the tank A, andpreventing condensation ef steam in said tank to a great'extent.' Ithappens in some casesthere might be more or less of the obnoxious vaporscommingling 'with the steam passing through the pipe J2 and hence intothe chamber H, thus making necessary an escape through the pipe P of thesame, and through the condenser p8 or if found necessary through aseparate condenser.

. After the oils have been obtained, if there should be any surpluswater Vbetween the residuum and the oil it. can be released through theorifices T, T', T?, 4according to its height in the tank, as can-alsothe oil obtained through the cooking process; the live steam being cutoff. After the live' steam has been out off and the oil 'has beenremoved. the residuum is in condition to be treated. exhaust steam isturned into thechamber H, vthrough the pipe P forthe purposepfdrying anddraining the` moisture troni said residuum, livel stcain may also beintroduced' at this point iffound desirable in order to hasten. thedrying.

During the drying. process vapors are l emitted from the residu'um, lbutare sucked out through the vacuum pipe B by means of the suctionapparatus, which consists of the usual Water injector type, and pump.The Water `cooling the vapor forming advacuum, in connection with theoperating of the pump.

Should any foreign matter enter'into the pipe B it will be led throughthepipe B so as to returnxagain to the tank.

From time to time tests can be made in the manner hereinbefore setforth,by means'I of the testing rod F Which isso arranged inconnectionjvith the pipe and' chamber heretofore set forth that t-hevacuum is not interferred with, or the operating stopped. When thecontents'of the dryin are found to be thoroughly ried, the vacuum isbroken by stopping the vacuum pump and opening the cover A2. Thedischarge door 52 at the lower endof the tank A, is then opened, givingaccess to the door'-A Way Y and the perforated 'plate y isfremoved,andthe blades being set in motion will automatically discharge thefertilizer. The value of the fertilizerdepends upon the amount ofammonia contained.

In `the drawings and in the specification as above set forth I haveillustrated arrangements of pipes, tanks', driving mechanisins, andagitators, in the manner'. Which I A I consider them best adaptedfor'the purpose, but I do not hence wish to be limited to these detailsof construction as they may be departedfrom and Still be embodied in myinvention.

What claimis: a

15A device of the class described, comb prising a closed rendering anddrying tank formed with a doublebottom, the lower portion thereof beinginverted -conically-shaped, agitators located in said tank adjacent'\the bottom thereof, a cylindrical' .jacket surrounding .the lowerportion of said tank,

and forming a heating chamber of less area at its upper portion andof)greater area at itsloWer ortion, said tank provided With a series ofischargeorifces located one above the other and communicating with the'1nteriorthereof, a vapor plpe communicating with the upperportion-Lof-the closed tank, a

condenser or disinfector, said vaporv pipe communicating with thecondenser or dis- "infector and. with the upper ortion of the heatingchamber, and means or controlling chamber the y'flow of said pipe toeither one or the other thereof.

2. VA drying and rendering apparatus comprising in combination a drying'and rendering, tank, a mechanical agitator positioned adjacent thebottom and Within said tank, said agitator mounted upon a shaft capableof vertical longitudinalmovement, a pinion splined to said shaft andmeshing With ap'oWer gear, a pivoted lever, and a step cen'- trallypositioned thereon, the lower end of said shaft seated in said step, anadjustabley screw device attached to the end of said lever o posite thepivot point thereof and adapted) to raise and lower the agitator, asdescribed. 3. A drying and rendering apparatus comprising in combinationa drying and render; ing tank, a door-Way located adjacent the bottomthereof, a closure for said door-Way,

said door-Way being provided with a chamber, a diaphragm provided Withinthe opening of the door-Way, said diaphragm having perforations throughthe lower portion v 'thereof for conducting live steam through said tankandv forming a heating chamberv of less` area at its upper ortionand'greater area at its bottom portion, said. tank provided vvith aseriesl of discharge 'orifices alining one above the other andcommunieating With the interior thereof, .a 'vapor pipe. communicatingwith the upper portion of the closed tank and with the upper portion ofthe heating chamber, and means for contreflling the flow 'therebetweenIin said pipe.-

Signed at Cuyahoga 'and State of June 19.05.; p

' i CHARLES E.ORD. l

'Cl-eveland in the count v-of Witnesses:

E. B. DoNNELLY, L. C. MARBACH.

